I want to put in My NGK Iridium IX Spark plugs in today; and I am trying to figure out if I should gap them or not. Advance Auto parts says gap should be 0.44 but some people say I shouldn't gap these plugs on my CL-S.
Can I get a few opinions fron you guys so that I can come to some sort of consensus. I want to put these in before I go on my trip Saturday (which is a nice lil ride).
If you have had them or currently had them please comment....or if you know about these plugs at all that would help.

 

i didn't gap mine.

 

See if the plug gap isn't on the sticker under the hood.

 

It depends on how they left the factory. They come boxed well, so they shouldn't change during shipping. You should at least check the gap on them and adjust if needed before installation......just be careful when gapping them.....they are a bit fragile.

 

that is why i didn't gap mine. i was scared to break an electrode on one of them.

 

Don't they come pregapped at 0.44 from the factory?

 

They come pregapped to .4mm.

 

they come pregapped your not supposed to gap iridium spark plugs, you could crack the fine tip

 

Our plugs are supose to be 1.1mm no??

 

no

 

Thanks everyone for your input I put the plugs in friday evening... and trust me I feel the difference in power (not pyschological power) the car is really pullin like a beauty and really seems to have more power than b4!!! My old spark plugs were punished!!! Coil packs seemed to be in good shape.

 

yes they are......0.044" = 1.1mm

 

I was referring to the size of the electrode.

Yeah, they come gapped to .044".

My bad.